Hydro-electric farms

ABSTRACT

An underwater hydro-electric farm comprising a plurality of electrical generator assemblies arranged in an array on a bottom surface of a body of water within an ocean current path to take generate power from a kinetic energy caused by the flow of the underwater current. Each assembly is installed in a cradle, which is anchored with a pile driven system to the bottom surface. Each assembly is a modular system allowing for easy swapping out of an assembly under water. Generated power is transmitted to a land based facility directly to or through an intermediate transfer station. Generator portion may have internally or externally supported field windings. Various configurations of propellers may be used, some with channels or solid vanes and another being a spiral shaped propeller. All water exposed surfaces of the generator and propeller portions are coated with a non-conductive, heat dissipating, anti-fouling and water specific protective coating.

This application is a divisional application of co-pending applicationSer. No. 10/754,255 filed Jan. 9, 2004.

FIELD OF THE INVENTION

The invention is related to underwater ocean current Hydro-Electricfarms and the electrical generators used for such farms.

BACKGROUND OF THE INVENTION

The problem with underwater ocean current flow power conversion toelectric energy up to now has been that the electric generators had tobe shielded from the ocean water, either by placing them above thesurface of the water or enclosing them in watertight containers.

SUMMARY OF THE INVENTION

What is needed is a new and unique invention that can use a direct oceanwater immersion type of electrical generator. These generators canincorporate either an internal framework with the stator wire coilsattached to and wound around this framework, which can then support thisnew assembly, or the more conventional exterior supported coil wirearrangement, sometimes known as the clamshell type arrangement.

The exterior and interior surfaces of this new generator is coated witha new combination of composite layers to form a non-conductive, heatdissipating, anti-fouling, caustic water environment specific,protective coating thus allowing the entire apparatus sustainedimmersion in the ocean water.

These generators are designed to allow the ocean current to pass throughtheir shapes to further aid in heat dissipation. Air based generatorsare limited by heat in the amount of electrical current they produce. Inthis invention, by allowing the water to flow around the windings andincrease the generated heat dispersion, it can produce larger amounts ofelectric current from the same size generator with industry standardwindings.

These electrical generators could also incorporate the use of abrush-less design, whereas the rotator components are never actually incontact with the stator assembly. The extended life of each unit andeach individual component is one of the overall design goals of thisinvention.

These electric generators are self-contained and modular in aspect.Replacement of most components involves the removal of the entireelectrical generator and turbine blade/propeller assemblies and pluggingin a replacement combined unit. Service of the combined units can be oneither specially equipped ships and/or serviced on the mainland,depending upon the extent of the repairs required. Spare assemblies canbe ready in advance to facilitate removal and replacement ofmalfunctioning units with a minimum of downtime. The Hydro-Electric Farmas a whole only loses the generating capacity of the individual assemblythat is being replaced.

This plug-in unit capacity can only be accomplished with thegenerator-supporting replacement-friendly cradles. These cradles arepre-assembled, transported to the site location and then lowered intoposition ready to receive the generator assemblies. Cradles are attachedto the ocean bottom with pile anchors. They can be driven, mechanicallyor power charged, augured or vibrated into position.

Placement of the electric generators minimizes environmental and boattraffic concerns. Other placement criteria include: a) degree of slopeof the bottom which could be anywhere between vertical and horizontal,b) actual composition of the bottom, c) placement proximity to final useof the generated electricity, d) location of optimum constant oceancurrent.

The electric generators are powered by a composite turbineblade/propeller that converts the ocean current's kinetic energy intorotational force. The rotational blades are large and slow moving, butwith substantial torque, this kinetic energy then is applied to therotational shaft on which they turn. This shaft is coupled to, or is apart of, a gear up rotational enhancer to maximize the electricgenerator's output. These turbine blade/propeller assemblies areconstructed of either non-corroding metals, space age compositematerials and/or coated with a protective type coating similar to thatused on the electric generators.

The metals incorporated in the design of these electric generating unitsand in their cradle design are preferably non-corroding alloy metals.

The power transmission lines from each Hydro-Electric Farm converges andunifies and then is routed to the mainland under land and water surfacethru directional drilled conduits. The advantages of this arrangementare numerous. The described turbine blade/propeller driven electricgenerator, cradle, anchoring piles and transmission lines are located inplural. Directional drilling from the mainland sites places thetransmission line conduit under the mainland and ocean surface.

The power control equipment, voltage regulators, converters andaccumulators are located inland and adjacent to the conventional powergrid system.

This invention and process is composed of predominately new art coupledwith some prior art combined in a unique and exciting new manner toproduce renewable electric energy from ocean currents. This newcombination includes, but is not limited to: totally immersed electricgenerators powered by ocean currents that have new internal structuresand support components, coated with non-conductive, heat dissipating,anti-fouling, water environment specific, protective coatings,employment of new turbine blade/propellers, (multiple styles are shown),setting of these submerged generators, (two types are shown), onpre-constructed cradles, (two types are shown), anchoring of thesecradles in the current's flow, constructing the generator and turbineblade/propeller as a combined replaceable unit, employing directionaldrilling to route the transmission cables, using water specific electriccable types, employing a junction platform (transfer station) for midocean deployment, and grouping these electric generators in multipleplacement formations that are known as Hydro-Electric Farms.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a Cross-Sectional View of an Adjacent Site Hydro-ElectricFarm;

FIG. 2 is another embodiment of the invention in cases where the oceancurrents are not directly adjacent to the mainland, in which anintermediate platform (transfer station) is incorporated where theplatform is bottom supported. Alternatively, the transfer station may beof a submersible, or semi-submersible type structure, or a combinationof the three types;

FIG. 2 a is a side view of the conventional bottom supportedintermediate platform;

FIG. 2 b is a side view of the a submersible type intermediate platform;

FIG. 2 c is a side view of the a semi-submersible type intermediateplatform;

FIG. 3 is a plan view of a Hydro-Electric Farm in which the oceancurrent is in close proximity to the mainland shoreline;

FIG. 4 is a side view of the internally supported electric generatorassembly, including the turbine blade/propeller, in whichever styleselected, being omitted, (see the omit line at the end of the turbineblade/propeller shaft), to focus on the electric generator and it'scorresponding parts;

FIG. 5 shows a cross-sectional view of the internally supported electricgenerator, as shown in FIG. 4;

FIG. 5 a is an exploded or expanded view of the top portion of theinternally supported electric generator, as shown in FIG. 5 as the areato be highlighted in the expansion circle;

FIG. 5 b is an exploded or expanded view of the Brush-Less RotatorAssembly as if it were pulled forward from the front of the standardrotator;

FIG. 6 is the side view of an externally supported (stator) field woundelectric generator, the turbine blade/propeller being omitted (see theomit line at the end of the turbine blade/propeller shaft), to focus onthe electric generator and its corresponding parts;

FIG. 7 is a cross-sectional view along cut line (B-B) of FIG. 6 of theexternally supported electric generator;

FIG. 8 is side view of the internally supported electric generator as itsits on the pre-manufactured cradle, again with the turbineblade/propeller being omitted to focus on the electric generator and thecorresponding cradle;

FIG. 8 a is side view of a concrete cradle mounted with an internallysupported electric generator;

FIG. 8 b is a cross-sectional along cut line (C1-C1) showing theinternal components of the Magnetic Force Support Points;

FIG. 9 is a cross-sectional along cut Line (C-C) of FIG. 8 of theinternally supported electric generator on the pre-manufactured concretecradle;

FIG. 10 is a side view of an externally supported electrical generatoron the pre-manufactured concrete cradle;

FIG. 11 is a cross section along cut Line (D-D) of FIG. 10;

FIG. 12 shows the internally supported generator attached to a differenttype cradle system, again with the turbine blade/propeller being omittedto focus on the electric generator and the corresponding cradle;

FIG. 13 is a cross-sectional view along cut line (E-E) of FIG. 12 of theinternal supported electric generator mated with the open web cradle;

FIG. 13 a is a front view of the extended open web cradle with theinternal supported electric generators arranged side by side. The cutline (G-G) has abbreviated the length of the extended cradle in thedrawing;

FIG. 13 b is a plan view of the extended open web cradle system showingplacement of the internal supported electric generators arranged side byside. The cut line (H-H) has abbreviated the length of the extendedcradle in the drawing;

FIG. 14 is a side view of an externally supported electric generatorplaced on an open web cradle, again with the turbine blade/propellerbeing omitted to focus on the electric generator and the correspondingcradle;

FIG. 15 shows a cross section of an externally supported electricgenerator placed on an open web cradle along cut line (F-F) of FIG. 14;

FIG. 16 shows the placement of a Turbine Blade Propeller style on theblade spindle, connected to the end of the turbine blade/propellershaft, which powers an internally supported electric generator;

FIG. 17 is the front view of the Turbine Blade Propeller style noted inFIG. 16 and which has in a rotational configuration eight individualblades pitched and overlapped in order to maximize conversion torotational movement;

FIG. 18 shows the placement of a Propeller Weave Rotational Unit style,on an internally supported electrical generator;

FIG. 19 is the front view of the Propeller Weave Rotational Unit stylenoted in FIG. 18;

FIG. 20 is a side view of The Box Blade Weave Propeller style;

FIG. 21 is the front view of Box Blade Weave Propeller style of FIG. 20;

FIG. 22 is the side view of the Box Blade Solid Vane Propeller style;

FIG. 23 is the front view of the Box Blade Solid Vane Propeller style ofFIG. 22;

FIG. 24 is the side view of The Skeletal Spiral Turbine style;

FIG. 25 is the front view of the Skeletal Spiral Turbine style of FIG.24;

FIG. 26 is the side view of the Multiple Three Blade Configurationstyle; and

FIG. 27 is the front view of the Multiple Three Blade Configurationstyle of FIG. 26.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1: Cross Section View of an Adjacent Site Hydro-Electric Farm.Shown in this view is the direct immersion type of electrical generator12. The exterior and interior surfaces of this generator is coated witha protective covering 19. Also shown are the composite turbineblade/propellers 13, the ocean current 17, pre-assembled cradle 16 andthe pile type devices 15. This anchoring system can be used eitherhorizontally into the side of the underwater channel drop-offs 8 orvertically into the bottom of the current channels 26. The layout of themultiple generators is based on current flow 17 and the required designminimum depth 18 for the generator assemblies 12/13, from the oceansurface 7.

The power transmission lines to the mainland are via under watertransmission cables 11 that are pulled thru the directional drilledconduits 6. Close to the mainland, these transmission lines are routedthrough the entrances 9 of the conduits 6, to sites set well back fromthe coastline 5 and the shoreline buildings 4. These conduits emerge at10 which is where the power regulators and conversion equipment (alsoreferred herein as control segment) 3 is housed, and the standardmainland transformers 2 and transmission lines 1 are located.

The described electric generators 12 are located in plurality in anarray arrangement. Control wirings 14 interconnect these multipleelectric generators 12.

FIG. 2: In areas of the world where the ocean currents are not directlyadjacent to the mainland, there can be placed an intermediate junctionplatform (transfer station) 22, somewhat like the modern oil drillingplatform, in which the platform may be bottom supported, as shown inFIG. 2, or of a submersible type, or semi-submersible type structure, ora combination of the above types, depending upon the depth of the oceancurrent 18 from the surface 7, the conditions of the bottom, and otherfactors. These platforms collect and transform the harvested electricityinto the proper configuration for long distance transmission to themainland. The incoming, direct bottom laid, power accumulatedtransmission line 20 is routed up the platform 21 and then converted inthe control segment 3 of the platform 22 to long distance transmissionconfiguration. The power is then routed back down the platform 23 and tothe mainland via the ocean bottom laid transmission cables 25. When thiscable 25 reaches proximity to the coastline it can then be routed intothe same type of conduit opening 9 located in the naturally occurringocean bottom 8, thru the incoming conduit 6, along with or betransformed into, part of the standard transmission cable 11, and thenup to the above ground emergence point 10. The rest of the generation,collection, combining and transmission aspects of the collectiveHydro-Electric Farm as depicted in FIG. 1, will apply to finally feedingthe electricity generated into the mainland electric power grids 1. Wehave not retraced the common and identical components in both FIG. 1 andFIG. 2, as they are similar and the concepts are alike. The conduit 6may be shorter or longer based on the particular generating site's oceanbottom characteristics and location of the mainland emerging point 10,its distance from the underwater conduit pull point 9, which isinfluenced by the ocean bottom depth 8. The control wiring and generatormonitoring functions are handled from the adjacent platform 22, ratherthan from the mainland site as in FIG. 1. The overall electricgenerating principles apply in FIG. 1 and FIG. 2.

FIG. 2 a: This is a side view of the standard intermediate junctionplatform that is bottom supported. This has been discussed in lengthabove. The permanent built in place bottom supported platforms are wellknown in the oil drilling art.

FIG. 2 b: This is a side view of a typical towed into place submersibleintermediate junction platform that becomes tethered to the bottom in asemi-permanent placement. The drawing shows the exterior skin removed toreveal the interior spaces. The surface buoy for communications,anchorage of junction platform servicing ships and location of thesubmersible junction platform is shown as 83. The docking port forunderwater submersible craft to supply men and materials to thesubmersed junction platform is shown as 84. The main temporary living,material storage and equipment areas are shown as 85. The water filledstabilizing pontoons or ballast chambers are denoted as 88. Thestructural cross bracing members bracing and tying the main junctionplatform chamber with the ballast chambers are shown as 90. Thesubmersible platform's bottom tethers are shown as 89. The submersibleplatform's bottom support struts are shown as 86. The tether bottomanchorage points are shown as 91. The bottom is shown as 26. The powerfrom the Hydro-Electric Farm being serviced is routed into thesubmersible platform and is shown as 21. The electrical transformationequipment in the control segment is shown as 3. The configured outgoingpower is then routed out of the structure 23 to the outgoingtransmission lines to the mainland. These submersible platforms areknown in the deep-sea exploration and the under sea habitat art. This isa new and unique use for this technology.

FIG. 2 c: This is a side view of a semi-submersible intermediatejunction platform. These intermediate junction platforms are typicallytowed to remote ocean locations. Quite often these intermediate junctionplatforms 2 c are placed over very deep water. The design allows for thehollow pylons and pontoons to be filled with water thus sinking themunder the surface of the ocean. This feature allows for the junctionplatform to remain steady even in sever weather. The water filled pylonsare shown as 87 and the connecting water filled pontoons are shown as88. The tether lines to the bottom are shown as 89 and the bottomanchoring points are shown as 91. The structural cross members bracingthe platform 22 above and between the pylons 87 and the pontoons 88 isshown in this drawing by the designation of 90. The stabilizing conduitfor the incoming electrical cables 21 and the outgoing cables 23 isshown as 92 in this drawing. These deep-water platforms are also knownin the oil drilling art.

FIG. 3: This is a plan view of a Hydro-Electric Farm 24 in which theocean current 17 is in close proximity to the mainland shoreline 5. Itshows the placement of the electric generators 12, the control wiring14, the turbine blade/propellers 13, the concrete cradles 16, the pileanchoring system 15, the ocean current 17, the sloping ocean bottom isdepicted as a line 8, and the ocean current's channel is depicted as therapidly changing topographical lines 26. Notice how in thisconfiguration the rows of electrical generators 12 are staggered so eachindividual generator and the turbine blade/propeller 13 are placed in aclean flow of ocean current water. This staggered configuration alsoaccommodates the flowing water's natural phenomenon of a water currentclosing back in on itself a short distance after encountering anobstruction and then resuming its natural flow path again with minimalloss of the current's forward momentum. This resumption point is whereanother generator 12 and turbine blade/propeller 13 are placed to againharvest the energy of the flowing ocean current. This resumption flowpoint, for the next row of generators 12, placement spot is behind thefirst two staggered rows and maybe in line with the first row'sgenerator, but placed some distance to the rear. The placement of theelectric generators on this closing and resumption of the current's pathand energy dictates individual generator placement throughout the entirefield of generators on a typical Hydro Electric Farm 24. This plan alsoshows the relationship of the shore 5 with the sloping bottom of theocean 8, the rapid topographical changes 26, after crossing the shoulderof the current's trench 8, and the placement of a Hydro-Electric Farm 24on the slope of this trench, either on the sloping walls or on thefloor, depending on optimal depth 18 from the surface 7 and mostconstant flow of the ocean current 17.

FIG. 4 is a side view of the internally supported electric generatorassembly 12, including the turbine blade/propeller 13, in whicheverstyle selected, has been omitted, (see the omit line at the end of theturbine blade/propeller shaft 29), to focus on the electric generator 12and its corresponding parts. The internal field windings support rings33, rotator electromagnet assembly 27, and the turbine blade/propellershaft 29, have been pulled forward along the Z-Z₁ line in order toclearly show the internal components listed above. The rest of theelectric generator 12 has the standard parts as already described,starting with the protective coating (schematically depicted as solidblack surfaces) 19, the rotator electromagnet assembly 27, the turbineblade/propeller shaft 29, the rotator electromagnet supports on theshaft 30, the electromagnets 35, the stator field windings 32, thestator field windings support rings 33 and the generator cradle dockingsupport struts 34.

FIG. 5 shows a cross section along Cut line (A-A) of the internallysupported electric generator 12, as shown in FIG. 4. The rotatorelectromagnet portion 27 of this electric generator is exposed to thewater currents via the open passages 28 and the same non-conductive,heat dissipating, anti-fouling, water specific, protective coating 19also protects its exposed surfaces. The protective coating 19 iscomprised of multiple layers in order to achieve multiple design goals.The primary layer is designed to provide non-conductivity of largeelectrical voltages. The secondary layers bind the non-conductivitylayers to anti-fouling, water specific, protective layers. Suchprotective coatings are known in the art and are typical of those marinecoatings used in the shipbuilding industries, military ships and barges,etc. These anti-fouling protective layers provide the protectionrequired specific to each site's location. The composite layers arethermally conductive in order to cool the generator as described above.The protective coating is applied to the generators and other requiredcomponents by a combination of application methods; Dipping, spraying,brushing, powder coating, or in a combination of these methods. Thecoating composition is designed for the specific salt concentration, theorganic and inorganic make up of local elements present and sitespecific temperature of the water, as well as many other environmentalfactors for each Hydro-Electric Farm location. The rotator electromagnetassembly 27 is made up of the rotator electromagnet's support andanchoring structures 30, the rotator electromagnets 35, and the rotatingturbine blade/propeller shaft 29. The other components shown in thiscross section are the field windings (stator) 32, the field windingssupport rings 33, the entire electric generator assembly 12, and theelectric generator cradle docking support struts 34.

FIG. 5 a is the expanded view of the top portion of the internallysupported electric generator 12, cross cut (A-A), as shown in FIG. 5 asthe area to be highlighted in the expansion circle. This expanded viewshows the protective coating 19 removed from the field windings (stator)32, the field windings support rings 33, the support ring connectors 93,the bolts 94 that hold the support ring and connectors together, thestator winding cores 95 and the rotator's electromagnets 35. The overallelectric generator assembly 12 is partially shown in this circularexpanded view, both the coated portion and the uncoated portion.

FIG. 5 b is an expanded view of the Brush-Less Rotator Assembly 74 as ifit were pulled forward from the front of the standard rotator 27. Themain components of this brush-less assembly are the transmitting ring67, with its transmit nodes 68, the protective spacer ring 69, with itscorrectly placed spaces (apertures) 70, and the reception ring 71, withthe reception nodes 72, connected to the reception tabs 73 that areembedded into the windings of the electromagnets 35 that have beenpreviously discussed in the internally supported electric generator 12.This brush-less assembly and its components are also coated with theprotective coating 19, where required. Obviously, the transmit nodes 68and the reception nodes 72 are not coated and are constructed fromnaturally occurring non-corrosive materials that can continue totransmit the electrical charge to power the rotator's 27 electromagnets35. The reception tabs 73 are locked into the corresponding internalwired grid of the electromagnets 35, as in a conventional rotator 27,this has not been shown, as it is standard in the industry. Theelectrical energy that the transmitter nodes 68 fire to the receptionnodes 72 is supplied via internally wired circuits in this particularportion of the turbine blade/propeller shaft 29. These electricalcharges required for the electromagnets 35 to maintain their polarityare fired the short distance between the transmitting nodes 68 and thereception nodes 72 through the protective spacer ring 69 letting theocean water provide the electrical connection between. These nodes andtheir corresponding attachment rings and the spacer ring 69 provide theshortest point between the transmitting nodes 68 and the reception nodes72 in this defined space, and yet are part of the water environment.Again, the ultimate goal is to design as many non-contact mechanicalelements into the Hydro-Electric Farm as possible.

FIG. 6 is the side view of an externally supported (stator) field woundelectric generator 38, the turbine blade/propeller has been omitted (seethe omit line at the end of the turbine blade/propeller shaft 29), tofocus on the electric generator 38 and its corresponding parts. Theexternal shell (clamshell type arrangement) 36 supports the fieldwinding much as in a conventional air-cooled electric generator. In thisimmersion electric generator configuration the shell and internal partsare protected by the non-conductive, heat dissipating, anti-fouling,water specific, protective coating, 19. The ocean water is encouraged toflow around the field windings 32, the electromagnetic rotator assembly27, the shaft 29 and supports 30, and in and out of the external supportshell 36 through openings in the external shell 37, and through thefront and rear of the shell. The field windings and electromagnetsnaturally have spaces between their individual components that alsoallow the water access around them inside the shell 36. The fieldwindings and cores are attached to the exterior shell with non-corrosiverods and bolts 47. The internal parts have not been pulled out of theshell in this drawing, as they are similar to the parts already shown inFIG. 4 except for not having the internal field winding support rings33. The externally supported electric generator 38 are interchangeablewith the internally supported generator 12. In many of the drawings wehave depicted the electric producing generators as type 12 forsimplicity. The same principles also apply for the externally supportedelectric generators 38.

FIG. 7 is a cross section view along cut line (B-B) of FIG. 6 of theexternally supported electric generator 38. The internal parts arevisible and are similar to the internally supported electric generator12, except the absence of the field winding support rings 33, thissupport is again completed by the external shell arrangement 36. Theother standard electrical generator parts of the internally supportedelectric generator 12, as shown in FIG. 5 are present in this design.The turbine blade/propeller shaft 29 is in the center, with theelectro-magnets 35 attached to it by means of the shaft magnet supports30. Water passages 28 are between the field windings 32 and the rotatorassembly 27. The external shell 36 supports the field windings 32. Waterpassages 28 are in between the field windings 32, the exterior shell 36and the outside ocean current 17. Again, this design increasesproduction of electrical power by keeping the winding's insulationcooler than an air environment electric generator. The same coating 19protects the externally supported electric generator 38 exposed surfacesto the ocean water, as mentioned previously. The externally supportedelectric generator 38 also employs the cradle docking support struts 34.This feature is also crucial to the modular replacement of thegenerating units 38 and 13, as a replaceable unit, similar as replacing12 and 13, as previously described.

FIG. 8 is a side view of the internally supported electric generator 12as it sits on the pre-manufactured cradle 16, again the turbineblade/propeller has been omitted to focus on the electric generator 12and the corresponding cradle 16. This view shows the concrete cradle 16,the cradle docking support struts 34, the cradle docking pins 45, thecradle anchoring piles 15, the turbine blade/propeller shaft 29, thecradle rotational shaft mounting module 39, the mounting module'srelease mechanism 40, the shaft rotational gear up unit 41, the electricgenerator's rotational shaft stabilizer 42, the electric generator'sinternal frame connection 43 to the rotational shaft stabilizer 42, theelectric generator 12, the protective coating 19, and the placement onthe ocean bottom as depicted by 26. The cradle rotational shaft mountingmodule 39, the shaft rotational gear up unit 41 and the electricgenerator's rotational shaft stabilizer 42 in the conventionalarrangement are in contact with the turbine blade/propeller shaft 29.Conventionally these rotational support-bearing points would necessitatethe use of hardened bearings and races. These components may be the onlyitems that necessitate special protection from the ocean water.

FIG. 8 a is a side view of a concrete cradle 16 mounted with aninternally supported electric generator 12. The outer covers of therotational shaft mounting module 39 and the electric generatorrotational shaft stabilizer 42 have been striped away to show themagnetic force support points 75. These magnetic force support points 75are mounted in multiple units along the turbine blade/propeller shaft 29as required to support the multiple types of turbine blades 13, shaft29, gear up unit 41, brush-less rotator assembly 74 and the rotatorassembly 27.

FIG. 8 b is a cross section along cut line (C1-C1) showing the internalcomponents of the Magnetic Force Support Points 75. The correspondingcomponents are as follows: First there is the outer ring electromagnets78, the outer electromagnetic induced polarity 79, the outer ring magnetcontrol and power wiring 81, the protective coatings 19, the waterpassage between the inner and outer magnetic rings 28, the innerelectromagnetic ring 76, the inner ring control wiring 80, the innerring induced polarity 79, the turbine blade/propeller shaft coupler 82.This is based on the simple principle that like kind polarity magneticfields repel other like kind polarity magnetic fields. The shaftstabilizer units 42 and the rotational shaft-mounting module 39 capturethe outer ring's electromagnets 78 and hold them in place. The innerelectromagnetic ring 76 is attached to, via the coupler 82, and become apart of the rotational mass, including the shaft 29. The electric forceis calibrated for rotational pull, mechanical pull and the overallweight to be supported at depth in order to permanently suspend therotational shaft 29 within the center of the outer electromagnetic ring78. Wiring to these electromagnets is accomplished by the use of thebrush-less FIG. 5 b, concepts already discussed above.

Some other design alternates of these metal to metal contact points areas follows: One solution to protect these support and turning shaftpoints from the ocean water environment would be to enclose conventionalrotational bearing races in a sealed container filled with an inert gasunder pressure, thus resisting water intrusion into the races. And ofcourse, a more common solution is to support the turbine blade/propellershaft 29, in a more conventional nature in which the rotational bearingsand races that are required are constructed from very densenon-corroding composite materials or metals. These materials maybe ofalloyed metals, ceramics and/or other substances selected for theirdesign qualities in this particular use.

FIG. 9 is a cross section along cut Line (C-C) of FIG. 8 of theinternally supported electric generator 12 on the pre-manufacturedconcrete cradle 16. It shows the cradle docking support struts 34 matedwith the corresponding recess 31 secured by the docking pins 45 in thepre-manufactured concrete cradle 16. The other components have alreadybeen discussed in length above.

FIG. 10 is a side view of an externally supported electrical generator38 on the pre-manufactured concrete cradle 16. This drawing also depictsthe standard parts that are listed above and shows theinterchangeability of the internal electric generator 12 and theexternally supported generator 38.

FIG. 11 is a cross section along cut Line (D-D) of FIG. 10. Thecommonality of the parts has been previously discussed. This again showsthe interchangeability of the electric generators 12 and 38.

FIG. 12 shows the internally supported generator 12 attached to adifferent type cradle system 44, again the turbine blade/propeller hasbeen omitted to focus on the electric generator 12 and the correspondingcradle 44. These open web cradles 44 are constructed of structuralmembers of either non-corrosive composites or metals or be coated withthe protective coating 19. The docking pins 45 are the connectionbetween the cradle's docking support struts 34 and the open web cradle44. In this open web cradle 44 design, the anchoring piles 15 are matedto the frame of the cradle with an adjustable pile restraint cap 46.They are closed after the piles have been placed into the ocean bottom.This allows the open web cradle 44 to resist the ocean current 17. Theother parts of the open web cradle 44 and electrical generator 12 arethe same as shown and discussed above in FIG. 8 and before. The open webstructural members allow more ocean current 17 to pass thru the cradlethan the concrete cradle design 16, as has already been discussed.

FIG. 13 is a crosscut view along cut line (E-E) of FIG. 12 of theinternal supported electric generator 12 mated with the open web cradle44. Note the cradle docking support struts 34 and the docking pins 45.The anchoring piles 15 are also captured with the pile restraint caps46. The other components shown are also the same as already discussedabove.

FIG. 13 a is a front view of the internal supported electric generator12 arrayed in unison side by side on an elongated open web cradle 44 a.The common components have already been discussed above. Thisarrangement allows the elongated open web cradle to act as a suspensionbridge and support these multiple electric generators 12 across a longerreach of sloping topographical bottom 26. The length of the extendedopen web cradle 44 a has been truncated by the cross cut line (G-G).These open web cradles are sized for length and number of supportedelectrical generators 12 for each individual farm's unique designcriteria.

FIG. 13 b is a plan view of the open web cradle 44 a showing theelongation and placement of multiple electric generators 12. The lengthof the extended open web cradle 44 a has been truncated by the cross cutline (H-H). Again, the common elements have been discussed above. Theextended open web cradles, in some instances are connected with otherextended open web cradles, side-to-side and front-to-back, based on eachindividual farm's criteria. The design of number of electric generators12 placed at each farm is unique to each individual Hydro-ElectricalFarm site.

FIG. 14 is a side view of an externally supported electric generator 38placed on an open web cradle 44, again the turbine blade/propeller hasbeen omitted to focus on the electric generator 38 and the correspondingcradle 44. The components are the same as previously discussedincluding: the rotational shaft 29, the shaft mounting module 39, themounting module release mechanism 40, the shaft rotational gear up unit41, the electrical generator mounted shaft stabilizer 42, the cradledocking support struts 34, the docking pins 45, the adjustable pilerestraint cap 46, and the externally supported shaft stabilizer mounts47. It should also be noted here that the open web cradle 44 designwould also lend itself to multiple electric generator 38 placements on asingle open web elongated cradle 44 a. The elongated open web cradle 44a then acts as a suspension bridge to support these multiple electricgenerators 38 across a longer reach of sloping topographical bottom 26.This again, depicts the interchangeability of the electric generators 12and 38.

FIG. 15 shows a cross section of an externally supported electricgenerator 38 placed on an open web cradle 44 along cut line (F-F) ofFIG. 14. The parts as labeled have already been discussed in detailabove. To recap, the main parts are the externally supported electricgenerator 38, the open web cradle 44, the pile anchors 15, the cradledocking support struts 34, the docking pins 45, the pile restraint caps46 and the sloping topographical changes 26.

FIGS. 16 and 17 shows the placement of the Turbine Blade Propeller 13style 48 on the blade spindle 52, connected to the end of the turbineblade/propeller shaft 29, which powers an internally supported electricgenerator 12. This arrangement could also be made with the externallysupported electrical generator 38. As the turbine blade/propeller shaft29 can be utilized with both types of generators so can various types ofwater current driven rotational units be able to be placed on either ofthese generators by use of the turbine blade/propeller shaft 29. TheTurbine Blade Propeller 13 style 48 is perceived as an open weave bladedwindmill type arrangement with surface added directional enhancers. Theweave itself is unique and is comprised of structural non-corrodingchannels 49 that direct the water flow in an altered direction as itpasses through and over the face of each channel 49. This action givesthe blades increased rotational force. The amount of open space betweenthe individual channels is a consideration of: size of blades,rotational force required, structural stability, multiplicity and otherengineering principles. To the front of this blade channel weave can beadded further directional enhancers 50. These enhancers add to therotational output. Finally, each individual blade is positioned inrelationship with it's neighboring blade much as the conventionalwindmill blades, both in blade pitch into the flowing current andindividual blade shape overlap so that each component blade 51,comprised of the channel weave 49 and the rotational enhancers 50, alsoact as a homogenized single blade on a rotator to further add to therotational force placed on the turbine blade/propeller. These blades 51are large and slow moving, but exert large amounts of rotational torqueon the turbine blade/propeller shaft 29.

FIG. 17 is the front view of the Turbine Blade Propeller 13 style 48 andhas in a rotational configuration eight individual blades 51 pitched andoverlapped in order to maximize conversion to rotational movement. Theblade composition has been discussed earlier, and is made up of a weaveof non-corrosive channels 49 overlaid with rotational enhancers 50 seton the center-mounted spindle 52 that is mated to the turbineblade/propeller shaft 29. The pre-manufactured concrete cradle 16 andanchoring piles 15 are shown as a gauge to relative size, the open webcradle 44 could have been depicted because of design interchangeability.To simplify the drawings, the concrete cradle 16 will continue to beused as part of the illustrations for the different types of turbineblade/propeller type units. The electric generator unit, either 12 or38, is hidden behind the turbine blade/propeller in this view. The exactsize of the turbine blade/propeller may be larger or smaller than whatis depicted, based on the engineering calculations required for optimumperformance with the connected generators, either 12 or 38, requiredrotational torque demands.

FIGS. 18 and 19 shows the placement of the Propeller Weave RotationalUnit 13 style 53, on an internally supported electrical generator 12.This arrangement is again made up of an open weave arrangement ofchannels 49 grouped in a turbine blade fashion. This composite isconstructed in the fashion of overlapping and pitched blades 54, whileeach blade captures a portion of the current's 17 kinetic energy, italso allows the remainder of the current 17 to pass through and affectthe next blade 54 that is positioned offset and behind the blade infront. This multi-layering of blades 54 continues until the requiredrotational torque is applied to the center spindle 52, which transfersthis energy to the rotational shaft 29, that then powers the attachedelectric generator, either 12 or 38.

FIG. 19 is the front view of the Propeller Weave Rotational Unit 13style 53. It is visible that this unit is made up of three layers offour blades 54 that are constructed of the rotational weave channels 49previously discussed. These blades 54 are formed in a square with radiuscorners shape. This shape provides the maximum rotational weave 49surface area to the current 17. The rotational weave 49 also allows thecurrent's force to act correspondingly on the multiple layers of blades54, as previously discussed. This unique shape of the blade 54 alsolends itself to be angled into the current and add to the rotationalforce exerted on the coupled shaft 29. The Propeller Weave RotationalUnit 13 style 53 has been depicted in FIG. 18 and FIG. 19, as threelayers of four blades, but may be either more or less layers or blades,depending on the torque requirements of the electric generator to bepowered.

FIG. 20 is a side view of The Box Blade Weave Propeller 13 style 55.This is a more conventional propeller arrangement. The body of thisstyle is made up of a weave of structural non-corroding channels 49 thatagain direct the water flow in a slightly altered direction as it passesthrough and over the face of the channels 49. This reaction to the forceof the current imparts a rotational force to the weave as a whole. Thisweave again is arranged in a blade type fashion. The blades areconnected via a center spindle 52 to the rotational shaft 29, whichimparts rotational force to the attached electric generator, either 12or 38. In this arrangement the blades 56, are protected by a circularcage arrangement 57 that also serves to direct the flow of the current17 against the blades to increase the rotational force imparted on thesystem as a whole.

FIG. 21 is the front view of Box Blade Weave Propeller 13 style 55. Thecircular cage 57 also protects the blades 57 from floating objectscarried in the current 17. The other items shown are as previouslydiscussed: Pre-Manufactured concrete cradle 16, anchor piles 15, theblades 57, the blade weave composition 49, the spindle 52, and the oceancurrent channel bottom 26.

FIG. 22 is the side view of the Box Blade Solid Vane Propeller 13 style58. In this arrangement the blades 59 are constructed in a moreconventional fashion using non-corroding material of a solid material.These blades are constructed in a fan type arrangement inside a similarcircular cage 57, connected to a center spindle 52, and with the othercorresponding parts as already discussed. This fan arrangement is drawnas having 16 blades, but may have more or less and be shaped differentlybased on the rotational torque required by the electric generatorcoupled to the shaft 29.

FIG. 23 is the front view of the Box Blade Solid Vane Propeller 13 style58.

FIG. 24 is the side view of The Skeletal Spiral Turbine 13 style 60.This rotational assembly is constructed in an increasing spiral formfrom the center point 61 toward the outside edges 62. This spiral isangled to optimally direct the current toward the outer edges of thespiral thus turning this directed force of the ocean water current 17into rotational movement. The spiral again is constructed of thedirectional channel weave 49 that is formed into shape by the supportrods 63 and the support cables 64. The support rods and cables 63, 64are constructed of non-corrosive materials chosen for their designcomposition. This skeletal spiral turbine is connected to thetraditional rotational shaft 29 by the means of the center point 61being attached to the rotational shaft 29.

FIG. 25 is the front view of the Skeletal Spiral Turbine 60. This viewshows the spiral effect from the center point 61, that is pointed towardthe oncoming current 17, toward the outside reinforced edges 62. Thecurrent flow 17 is converted to rotational force that turns therotational shaft 29 which powers the coupled generator, either 12 or 38.The spiral is constructed of the weave of directional cannels 49. Toreinforce the spirals flat surfaces and keep them angled towards theocean current 17 flow, an arrangement of support rods 63 and cables 64have been employed. The skeletal nature of this turbine/propellerdecreases the weight and allows for more surface area to be used, whichequals more rotational torque for the same expenditure in materials.

FIG. 26 is the side view of the Multiple Three Blade Configuration 13style 65. This design is based on the common wind turbine blade designwith the new feature of multiple additional blade sets. The additionalsets of turbine blades captures more of the water current's 17 energyand by being used in multiple sets, slows down the rotationalrequirements of the system as a whole. Remember our goal is large slowmoving rotational blades imposing large amounts of torque to therotational shaft 29. The blades 66 are constructed of non-corrosivematerials and be shaped to impart rotational motion from a frontalcurrent flow.

FIG. 27 is the front view of the Multiple Three Blade Configuration 13style 65. The internally supported electric generator 12 is visiblebehind the multiple blades 66. The pre-manufactured concrete cradle 16and the cradle piles 15 are also visible in the rear of this view.

A great deal of time has been spent looking at the propulsion (turbineblade/propeller 13), component for these electric generators 12 and 38.Up to this invention, there has not been a need for a completelysubmerged rotational turbine blade/propeller 13, unit to turn acompletely immersed power-producing electric generator 12 and 38.Further selection for the final type and style of the turbineblade/propeller 13 units are made based on specific conditions for eachelectric generator 12 or 38 placed within each Hydro-Electric Farm.

1-43. (canceled)
 44. An underwater hydroelectric generator assembly foruse in a hydroelectric farm comprising: an electrical generator portioncoupled to a turbine/blade propeller portion, wherein surfaces ofcomponents exposed to the water for each portion are coated with anon-conductive, heat dissipating, anti-fouling and water specificprotective coating, and wherein the electric generator portion furtherincludes: an externally supported stator field wound electric generatorcomprising an external shell enveloping field windings of the electricgenerator, the external shell supporting and being fastened to saidfield windings, and the external shell further having openings in saidexternal shell, and wherein the water can flow through the electricgenerator assembly between a rotator electromagnet assembly portion ofthe electric generator portion and the field winding assembly, throughspaces in each of said rotator electromagnet assembly and said statorfield winding assembly and through the openings in the external shell.45. The underwater hydroelectric generator assembly according to claim44, wherein said hydro-electric generator assembly further comprises: acradle rotational shaft mounting module on each side of the electricalgenerator portion, each mounting module including a mounting modulerelease mechanism which secures a turbine blade/propeller shaft to thecradle; a shaft rotational gear up unit located adjacent one of saidmounting modules on the turbine blade/propeller portion of thehydroelectric generator assembly; and a rotational shaft stabilizermounted on the shaft and on both sides of the electrical generatorportion of the hydro-electric generator assembly, wherein the mountingmodule, the shaft rotational gear up unit and the rotational shaftstabilizer are in contact with the turbine blade/propeller shaft. 46.The underwater hydro-electric generator assembly according to claim 45,further comprising: a plurality of magnetic force support points mountedalong the turbine blade/propeller shaft as required to support theturbine blades/propellers and turbine blade/propeller shaft, the gear upunit and a rotator assembly of the electrical generator portion of thehydroelectric generator assembly.
 47. The underwater hydroelectricgenerator assembly according to claim 46, wherein said plurality ofmagnetic force support points each comprise: an outer electromagneticring having an induced electromagnetic polarity; an outer ring magnetcontrol and power wiring; an inner electromagnetic ring having aninduced electromagnetic polarity; a water passage between the outer andinner electromagnetic rings; inner ring control wiring; and a turbineblade/propeller shaft coupler, wherein the shaft stabilizer units andthe rotational shaft mounting module capture the outer ring'selectromagnets and holds them in place, and wherein the inducedpolarities of the inner and outer rings creates a polarity of an innerside of the outer ring which is the same as a polarity of an outer sideof the inner ring.
 48. The underwater hydroelectric generator assemblyaccording to claim 44, wherein the turbine blade/propeller portionincludes blade propellers formed as an open weave bladed windmillarrangement, the blade propellers further having directional enhancersalong a perimeter of each blade propeller, the weave arrangementcomprising structural channels that direct the water in an altereddirection as the water passes through and over a face of each channel,so as to give the blade propellers a rotational force, wherein eachblade propeller is positioned in relationship with a neighboring bladepropeller so as to overlap each other.
 49. The underwater hydroelectricgenerator assembly according to claim 44, wherein the turbineblade/propeller portion includes two or more layers of three or moreblade propellers, each blade propeller being pitched and having an openweave arrangement comprising structural channels that direct the waterin an altered direction as the water passes through and over a face ofeach channel, so as to give the blade propellers a rotational force,wherein each blade propeller is positioned in relationship with aneighboring forward or aft blade propeller so as to overlap each other.50. The underwater hydroelectric generator assembly according to claim44, wherein the turbine blade/propeller portion includes bladepropellers arranged in a conventional box blade weave arrangement, aprotective circular cage around the turbine blade/propeller assembly,the circular cage having openings serving as means for directing theflow of water against the blade propellers, structural channels in eachblade propeller that direct the water in an altered direction as thewater passes through and over a face of each channel, so as to give theblade propellers a rotational force, wherein each blade propeller ispositioned in relationship with a neighboring blade propeller so as tooverlap each other.
 51. The underwater hydroelectric generator assemblyaccording to claim 44, wherein the turbine blade/propeller portionincludes a plurality of solid vane propellers arranged in a conventionalfan arrangement, a protective circular cage around the turbineblade/propeller assembly, the circular cage having openings serving asmeans for directing the flow of water against the blade propellers. 52.The underwater hydroelectric generator assembly according to claim 44,wherein the turbine blade/propeller portion comprises a skeletal spiralturbine rotational assembly, said spiral turbine rotational assemblyformed in an increasing spiral form from a center point on a rotationalshaft of the electrical generator assembly and spiraling radiallyoutward toward the electrical generator portion of the electricalgenerator assembly and ending in a circular shaped outer edge, thespiral form further being angled to optimally direct the flow of watertoward the outer edge of the spiral form thereby converting a directedforce of the flow of water into rotational movement of the spiralturbine rotational assembly, the spiral turbine rotational assemblyfurther having spaced-apart longitudinal support rods extending from theouter edge to an intermediate portion of the spiral form andspaced-apart support cables extending from the outer edge to anattachment location adjacent the center point, the longitudinal supportrods and the support cables in combination forming a directional weaveto direct the flow of water toward the spiral form and the outer edge.53. The underwater hydroelectric generator assembly according to claim44, wherein the turbine blade/propeller portion includes a plurality ofthree bladed turbine propellers, each three bladed turbine propellerbeing in a staggered arrangement from the other three bladed turbinepropellers, and each propeller being formed in a conventional windturbine design.